Soccer Football - Copa Libertadores - Group D - Fluminense v River Plate - Maracana, Rio de Janeiro, Brazil - April 22, 2021 Fluminense's Fred and River Plate's Federico Girotti swap shirts after the match Pool via REUTERS/Silvia Izquierdo

Soccer Football - Europa League - Round of 16 Second Leg - AC Milan v Manchester United - San Siro, Milan, Italy - March 18, 2021 Manchester United's Paul Pogba and AC Milan's Zlatan Ibrahimovic swap shirts after the match REUTERS/Daniele Mascolo

Soccer Football - Champions League - Round of 16 First Leg - FC Barcelona v Paris St Germain - Camp Nou, Barcelona, Spain - February 16, 2021 Barcelona's Lionel Messi swaps shirts with Paris St Germain's Mauro Icardi after the match REUTERS/Albert Gea

Soccer Football - Champions League - Round of 16 First Leg - FC Barcelona v Paris St Germain - Camp Nou, Barcelona, Spain - February 16, 2021 Barcelona's Lionel Messi swaps shirts with Paris St Germain's Mauro Icardi after the match REUTERS/Albert Gea

Soccer Football - FA Cup - Fifth Round - Barnsley v Chelsea - Oakwell, Barnsley, Britain - February 11, 2021 Chelsea's Mateo Kovacic swaps shirts with a Barnsley player at the end of the match Action Images via Reuters/Lee Smith

Soccer Football - FA Cup - Fourth Round - Barnsley v Norwich City - Oakwell, Barnsley, Britain - January 23, 2021 Norwich City's Mario Vrancic and Barnsley's Dominik Frieser swap shirts after the match Action Images/Jason Cairnduff

People take from themselves swap samples for COVID-19 testings at the Port of Dover, amid the coronavirus disease (COVID-19) outbreak, in Dover, Britain, December 24, 2020. REUTERS/Simon Dawson

Demonstrators hold up a sign and a mock submarine during a protest against Israeli Prime Minister Benjamin Netanyahu's alleged corruption and his handling of the coronavirus disease (COVID-19) crisis, near Netanyahu's official residence in Jerusalem, December 5, 2020. The sign reads: "A corrupt prime minister is swapped in court". REUTERS/Amir Cohen

Soccer Football - UEFA Nations League - League C - Group 4 - Kazakhstan v Lithuania - Almaty Central Stadium, Almaty, Kazakhstan - November 18, 2020 Kazakhstan's Aibol Abiken looks dejected at the end of the match while Sergey Khizhnichenko and Lithuania's Mark Beneta swap shirts REUTERS/Pavel Mikheyev

Paramilitary police officers swap positions during a change of guard in front of Potala Palace in Lhasa, during a government-organised tour of the Tibet Autonomous Region, China, October 15, 2020. Picture taken October 15, 2020. REUTERS/Thomas Peter

A boy looks on as he waits for freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

A boy waits for freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

A boy carries a rifle as he waits for freed Saudi-led coalition prisoners, one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

Freed Saudi-led coalition prisoners gesture from a bus one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

People gesture to freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

Houthi fighters shout slogans as they arrive at Sanaa Airport after their release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters disembark an ICRC plane upon their arrival at Sanaa Airport after their release in a prisoner swap, in Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters pray as they arrive at Sanaa Airport after their release during a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters pray as they arrive at Sanaa Airport after their release during a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners pray as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY

A freed Houthi prisoner hugs a relative after his release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Saudi-led coalition prisoners pray as they arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners wave as they arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners pray as they arrive after release their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners shout slogans as they arrive, after release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A freed Saudi-led coalition prisoner hugs a relative after his release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A freed Saudi-led coalition prisoner hugs a relative after his release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A man looks at a plane waiting to carry Houthi prisoners to be released by the Saudi-led coalition in a prisoner swap, in Sayoun, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A Houthi prisoner is carried into a plane to be transported to Sanaa airport as he is released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport after being released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha TPX IMAGES OF THE DAY

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport after being released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A plane waits to transport Houthi prisoners after being released by the Saudi-led coalition in a prisoner swap, in Sayoun, Yemen October 15, 2020. REUTERS/Ali Owidh

U.S. national Sandra Loli sits after being released, in Muscat, Oman October 14, 2020. Picture taken October 14, 2020. REUTERS/Issa Raisi

U.S. national Mikael Gidada leaves a plane after being released, in Muscat, Oman October 14, 2020. Picture taken October 14, 2020. REUTERS/Issa Raisi

U.S. national Mikael Gidada looks on after being released, in Muscat, Oman October 14, 2020. Picture taken October 14, 2020. REUTERS/Issa Raisi

U.S. national Sandra Loli looks on after being released, in Muscat, Oman October 14, 2020. Picture taken October 14, 2020. REUTERS/Issa Raisi